Spherical ASTM A710 Steel Powder, grade A, class 1

ASTM A710 Steel Spherical Powder, grade A, class 1 Product Information -:- For detailed product information, please contact sales. -: ASTM A710 Steel Spherical Powder, grade A, class 1 Synonyms -:- For detailed product information, please contact sales. -: -:- For detailed product information, please contact sales. -: Spherical ASTM A710 Steel Powder, grade A, class 1 characteristics -:- For detailed product information, please contact sales. -: Spherical ASTM A710 Steel Powder, grade A, class 1 Particle Size -:- For detailed product information, please contact sales. -: -:- -:- 0-15μm ,5-25μm, 15-45μm, 15-53μm,20-63um, 45-75μm, 45-105μm, 45-150μm ,75-150μm. (Various granularities can be customized according to customer requirements) -:- For detailed product information, please contact sales. -:

Spherical ASTM A710 Steel Powder, grade A, class 1 Applicable processes -:- For detailed product information, please contact sales. -: Laser/electron beam additive manufacturing (SLM/EBM, 3D printing) Direct laser deposition (DLD) Used in thermal spray (TSA) Powder hot isostatic pressing (HIP) Metal injection molding (MIM) Powder metallurgy (PM) Laser cladding (LC), etc. -:- For detailed product information, please contact sales. -: Spherical ASTM A710 Steel Powder, grade A, class 1 Chemical Composition -:- For detailed product information, please contact sales. -: -:- For detailed product information, please contact sales. -: ASTM A710 Steel, grade A, class 1 Product Information -:- For detailed product information, please contact sales. -: ### **Product Introduction: ASTM A710 Steel, Grade A, Class 1** #### **1. Overview** ASTM A710 is a standard specification for **Age-Hardening, Low-Carbon Nickel-Copper-Chromium-Molybdenum-Columbium (Niobium) Alloy Structural Steel**. Grade A, Class 1 represents a premier class of **high-strength, low-alloy (HSLA) steel** distinguished by its unique heat treatment process and exceptional combination of properties. Unlike conventional quenched & tempered steels, A710 Grade A Class 1 achieves its high strength through a **precipitation (age) hardening** treatment following hot-rolling and rapid cooling (Class 1). This results in a steel with high yield strength, excellent notch toughness, and superior weldability without the need for preheating in most thicknesses, making it a highly versatile and cost-effective material for critical applications. #### **2. International Standard** The primary governing standard is **ASTM A710/A710M - Standard Specification for Age-Hardening, Low-Carbon Nickel-Copper-Chromium-Molybdenum-Columbium Alloy Structural Steel**. Class 1 specifically refers to material that is **hot-rolled and precipitation heat treated**. Other relevant standards include: * **ASTM A435/A435M:** Standard Specification for Straight-Beam Ultrasonic Examination of Steel Plates. * **ASTM A578/A578M:** Standard Specification for Straight-Beam Ultrasonic Examination of Rolled Steel Plates for Special Applications. * **AWS D1.1/D1.1M:** Structural Welding Code - Steel. #### **3. Chemical Composition (Heat Analysis)** The chemical composition of A710 Grade A is meticulously balanced to facilitate age-hardening. The low carbon content is key to its weldability, while elements like Ni, Cu, Nb, and Mo contribute to strength through precipitation hardening. *Typical Composition Ranges (Weight %):* | Element | Grade A, Class 1 | | :--- | :--- | | Carbon (C) | ≤ 0.07 | | Manganese (Mn) | ≤ 0.40 - 0.70 | | Phosphorus (P) | ≤ 0.025 | | Sulfur (S) | ≤ 0.025 | | Silicon (Si) | 0.15 - 0.35 | | Nickel (Ni) | 0.70 - 1.00 | | Copper (Cu) | 1.00 - 1.30 | | Chromium (Cr) | 0.40 - 0.80 | | Molybdenum (Mo) | 0.15 - 0.25 | | Columbium (Cb/Nb) | 0.02 - 0.10 | | Vanadium (V) | (Optional, for enhanced properties) | | **Carbon Equivalent (CE)** | **Typically very low (~0.36), excellent for welding.** | #### **4. Mechanical & Physical Properties** *Guaranteed Minimum Mechanical Properties (Typical for Plate):* | Property | Value | | :--- | :--- | | Yield Strength (min) | 70 ksi (485 MPa) | | Tensile Strength (min) | 85 ksi (585 MPa) | | Elongation in 2 in (min) | 18% | | **Charpy V-Notch Impact Energy** | | | Test Temperature | -100°F (-73°C) | | Minimum Avg. Energy | 40 ft-lbf (54 J) at -100°F | *Note: The impact toughness at cryogenic temperatures is a hallmark property of this steel grade.* *Typical Physical Properties:* * Density: ~0.284 lb/in³ (7.85 g/cm³) * Modulus of Elasticity: 29,000 ksi (200 GPa) * Poisson's Ratio: 0.29 * Coefficient of Thermal Expansion: 6.5 x 10⁻⁶ /°F (11.7 x 10⁻⁶ /°C) #### **5. Product Applications** ASTM A710 Grade A Class 1 is selected for demanding applications where a superior balance of strength, toughness, weldability, and sometimes corrosion resistance is required: * **Pressure Vessels & Reactors:** For low-temperature and cryogenic service (e.g., LNG storage, ethylene plants), where exceptional notch toughness is critical. * **Offshore & Marine Structures:** Node joints, topside modules, and hull components in ships and offshore platforms benefiting from its high strength-to-weight ratio and good seawater corrosion resistance (due to Cu content). * **Military & Defense:** Hulls and structural components of naval vessels, armored vehicles, and other strategic equipment. * **Structural Applications:** Critical welded structures in construction and mining where high strength and fatigue resistance are needed without complex welding procedures. * **Heavy Machinery:** Components subject to dynamic loads and low-temperature environments. #### **6. Key Characteristics & Advantages** * **Excellent Weldability:** Its very low carbon content and low carbon equivalent (CE) allow it to be welded readily without preheat in many thicknesses, significantly reducing fabrication time and cost. * **Superior Low-Temperature Toughness:** Provides guaranteed high impact energy down to -100°F (-73°C), making it ideal for cryogenic applications. * **Age-Hardening Process:** The precipitation hardening treatment provides high strength with good ductility and minimizes distortion compared to traditional quench & temper processes. * **Good Corrosion Resistance:** The copper and chromium additions offer better atmospheric and seawater corrosion resistance than standard carbon steels. * **Fabricability:** Exhibits good formability and can be easily machined, sheared, and punched. * **High Strength-to-Weight Ratio:** Enables lighter, more efficient structural designs. **Conclusion:** ASTM A710 Grade A, Class 1 is a technologically advanced, age-hardening alloy steel that stands out for its unique property profile. It successfully bridges the gap between high strength, exceptional low-temperature toughness, and outstanding weldability. This makes it a preferred, cost-effective choice for engineers and fabricators working on critical infrastructure, cryogenic systems, offshore projects, and defense applications where performance, safety, and fabrication efficiency are paramount. -:- For detailed product information, please contact sales. -: ASTM A710 Steel, grade A, class 1 Specification Dimensions Size： Diameter 20-1000 mm Length <5700 mm Size:We can customized as required Standard： Per your request or drawing We can customized as required Properties（Theoretical） Chemical Composition -:- For detailed product information, please contact sales. -: ASTM A710 Steel, grade A, class 1 Properties -:- For detailed product information, please contact sales. -:

Spherical ASTM A710 Steel Powder, grade A, class 1 Particle Size Description -:- For detailed product information, please contact sales. -: Applications of Spherical ASTM A710 Steel Powder, grade A, class 1 -:- For detailed product information, please contact sales. -: -:- For detailed product information, please contact sales. -: Applications of ASTM A710 Steel Spherical Powder, grade A, class 1 -:- For detailed product information, please contact sales. -: Chemical Identifiers ASTM A710 Steel Spherical Powder, grade A, class 1 -:- For detailed product information, please contact sales. -:

Packing of ASTM A710 Steel Spherical Powder, grade A, class 1 -:- For detailed product information, please contact sales. -: Standard Packing: -:- For detailed product information, please contact sales. -: Typical bulk packaging includes palletized plastic 5 gallon/25 kg. pails, fiber and Steel Spherical Powder drums to 1 ton super sacks in full container (FCL) or truck load (T/L) quantities. Research and sample quantities and hygroscopic, oxidizing or other air sensitive materials may be packaged under argon or vacuum. Solutions are packaged in polypropylene, plastic or glass jars up to palletized 2171 gallon liquid totes Special package is available on request. E FORUs’ is carefully handled to minimize damage during storage and transportation and to preserve the quality of our products in their original condition